Dr. Lee is a Branch Chief at the U.S. EPA’s Center for Public Health and Environmental Assessment (CPHEA), where her work focuses on systematic review and human health risk assessment. She leads a team that is responsible for the development of EPA’s Integrated Risk Information System (IRIS) assessments and Provisional Peer-Reviewed Toxicity Values (PPRTVs). Dr. Lee is also an adjunct Associate Professor in the Department of Environmental Sciences and Engineering at UNC Gillings School of Global Public Health. She received her Ph.D. in Environmental Health Sciences from the University of Michigan in 2002 where her doctoral work focused on arsenic chemistry and health effects. During her postdoctoral fellowship with Toxicogenomics Core in the National Health and Environmental Effects Research Laboratory (NHEERL) at EPA she received training in transcriptomics specializing in aging and susceptibility. Prior to joining the EPA, Dr. Lee served as state toxicologist at the Division of Public Health in Madison, Wisconsin where she was the technical consultant for environmental exposure assessment and health risk assessment, as well as being the lead toxicologist for developing the public health response to chemical hazards and threats. She is author/co-author of over 40 publications including peer-reviewed articles, book chapters, and EPA documents. She was the lead of the tert-Butanol IRIS assessment, and is co-lead on the inorganic arsenic assessment. Dr. Lee is also passionate about educational outreach and mentoring and participates in career fairs, science fairs, and mentoring programs.